Apparatus for determining image areas from films and plates

Details Apparatus for determining image areas from films and plates Apparatus for determining image areas from films and plates

1982-09-30

1986-01-14

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

356380, 356444, 356446, G01N 2117, G01B 1128

Patent

active

045642907

ABSTRACT:
A scanning apparatus is provided capable of obtaining image area information from both photograhic films and printing plates. The apparatus includes a scanner assembly carrying two independent light sources for use in the respective plate and film scan operations. The scanner assembly is mounted for movement over a film/plate support surface and carries a columnar sensor array positioned to receive light transmitted through films being scanned. The same sensor array is utilized for receiving light reflected from plates when in the plate scan mode. Optical baffle members are operated by a manual control knob which also controls energization of the appropriate light sources.

REFERENCES:
patent: 3053181 (1958-10-01), Jorgensen
patent: 3936189 (1976-02-01), De Remigis
patent: 4125328 (1978-11-01), Suga
patent: 4162126 (1979-07-01), Nakagawa et al.
patent: 4210818 (1980-07-01), Green et al.
patent: 4441819 (1984-04-01), Takeuchi et al.

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